AGL project manager Adam Mackett said the 530km trip had required a great deal of planning, as well as some roadworks.

"When you talk about delivering a blade that's 65 metres long, you can imagine there's some tight turns and curves that need to be negotiated, and some works that need to be done on those respective ones," Mr Mackett said.

"People living in Silverton will be familiar with what we've done close to town, and we have to look at the same sort of geometry and issues further out of town as they come up from Port Adelaide."

A new road was built to allow the trucks to bypass Broken Hill, without which they would have had to negotiate a tight roundabout.